2)draw horizontal line on wall or door at height of lamp center.
3)locate point on this horizontal line at which projected centerline of chassis intersect.
4)measure distance between lamp centers and divide this distance equally on either side of center mark,then draw two vertical lines directly ahead of each lamp center.
5)switch on high beams in head lamps and cover one lamp while adjusting other.
6)loosen support nut and aim lamp so that beam registers with horizontal line.
7)then tighten nut securely,taking care not to change location of beam on vertical surface.
after lamp is aligned,cover its beam and proceed in same manner with opposite lamp. 